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MTX Terminator amplifers make it easy to create a sweet-looking setup  these gloss-black amps share the same size and shape, so they'll look great in a multi-amp installation. These amps deliver plenty of power to drive your speakers and subs, and you'll find all connections on one side of the amp so your wiring stays organized.

The TN400/4 4-channel amplifier powers your speakers with 45 watts RMS per channel at 4 ohms, or you can drive a pair of speakers with 150 watts RMS in bridged mode. The Active Fan Cooling system uses a variable-speed internal fan that increases its speed as you turn the volume up, then slows when you turn your volume down. This system keeps the amp running cool in every situation, while eliminating the need for a heavy heat sink. The Smart Engage feature turns the amp on automatically when it senses a signal through the speaker-level inputs, so you don't have to run a turn-on lead to your receiver.

Product Highlights:

4-channel car amplifier

45 watts RMS x 4 at 4 ohms (75 watts RMS x 4 at 2 ohms)

150 watts RMS x 2 in bridged mode (4-ohm stable in bridged mode)

selectable full, high- and low-pass filters (85 Hz, 18 dB per octave)

Active Fan Cooling with automatic variable fan speed

Smart Engage turns on amp when signal arrives through the speaker-level inputs

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Product Research

Features

CEA-2006 Compliant: CEA-2006 is a new system of
testing and measurement methods for mobile audio amplifiers. This voluntary
standard advocates a uniform method for determining an amplifier's RMS power
output and signal-to-noise ratio. The criteria for measuring power uses a DC
input voltage of 14.4 volts and the RMS power output is measured into a 4-ohm
load, with 1% or less Total Harmonic Distortion (THD) plus noise, and at a
frequency range of 20 Hz to 20,000 Hz when applicable. Signal-to-Noise ratio is
measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4
ohms. CEA-2006 allows consumers to compare car amplifiers and receivers on an
equal basis. The MTX Terminator TN400/4 under CEA-2006 regulations is rated at
45 Watts RMS x 4
channels with a 78dBA signal to noise ratio.

2-Ohm Stable: The MTX
4-channel amplifier is capable of handling
load impedances down to 2-ohms. The amplifier is rated at 75 Watts RMS x 4
channels in 2 ohms with 1% THD.

Bridgeable: The MTX Audio 4-channel amplifier can be bridged
down to two channels to output 150 Watts x 2-channels at 4 ohm.

Pure N-Channel MOSFET Design: The Terminator amplifier
utilizes Pure N-Channel MOSFET technology for more linear speaker control,
enhanced signal-to-noise ratio and more power. This design lets the audio signal
travel through fewer parts making the output stage of the amplifier more
efficient and giving you more usable power from the amp.

Active Fan Cooling: Rather
than weighing the amplifier down with heavy aluminum heat sinks, the Terminator
amplifier is cooled using a variable speed internal fan. The increasing output
of the amplifier engages the fan to automatically increase its speed allowing
more cool air to enter the amplifier. This keeps the amplifier performing at its
peak level longer and prevent the amplifier from having to into thermal shutdown
due to overheating. The fan will automatically slow down when the amplifier's
output is decreased.

Crossovers: The
Terminator TN400/4 features independent Front and Rear high-pass and low-pass
18dB/octave, 85Hz crossovers. The crossovers can also be set to full-range.

Connections

Power/Ground/Turn-On Connections: The TN400/4 features 0.5"
wide
Power, Ground, and Turn-On Lead screw terminals. These terminals will handle up
to 4 AWG wire.

Preamp Output: The amplifier features a stereo preamp output
which is summed between the amplifier's front and rear channels that allow you
to connect an additional amplifier to your car audio system without running RCA
cable back to your headunit.

Speaker Outputs: The amplifier is equipped with four
pairs of speaker terminals for connection of four pairs of speakers. The
speaker terminals are 0.3125" screw terminals which will accommodate 12 to 8 AWG
speaker wire.

Smart-Engage Speaker Level Input: The Terminator TN400/4
comes with a set of speaker level input harnesses. This feature makes it easier
to add an amplifier to a factory radio or to a receiver with no preamp outputs.
When using the speaker-level inputs, the amp automatically turns on when it
senses signal from the head unit, eliminating the need for a remote turn-on
connection. In many cases, this feature will allow you to install the amplifier
without removing your radio.

Fuse: The amplifier is equipped with two 25-Amp fuses.

Warranty

5 Year Warranty Terms: This product carries a 5-Year
Prorated Warranty with the following terms:

Years 1-2: Products found to be defective in materials
or workmanship during the first two years will be, at Mitek's option,
repaired or replaced by Mitek at no charge. The warranty period does not
renew, but continues on from the original date of purchase.

Years 3-5: The purchase price of an item which becomes
defective after the first two years and prior to the end of the warranty
period will be prorated and credited toward the purchase of a new MTX
product. The amount of proration is determined by dividing the original
purchase price by the number of months in the warranty period (60), then
multiplying the result by the number of months remaining in the warranty
period.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to
find elsewhere. That's because we have our own in-house Product Research
team. They verify what’s in the box, check the owner's manual, and record
dimensions, features and specs. We stay on top of new products and technologies
to help people make informed choices.

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Good product for the money

This product has an excellent warranty and a good price. The installation is relatively easy as there is no need to attach a pre-amp or a remote power feed. I have two MTX and they are both excellent performers to date.

MTX Terminator TN400/4

I instaled this amp to run 2 6x9's and two 5" door speakers. There is plenty of power for those 4 speakers mabey two much. It installed very easy and was labled nicely. i would recomend this amp to anyone looking for a less expensive amp.

2 12" Kicker Comps

Written By LIVIN LOUD 313, Michigan on Saturday, August 21, 2010

I got this amp a few years back along with 2 12" Kicker Comps for my first system and i had it in a 91 caprice.
This thing was LOUD.
I ended up running 3 12" Kicker Comps off of this as well as a 15".
I finally smoked it when my battery wire disconnected from my compasitor and grounded out the amp and smoke started pouring out of it. I tried fixing it but i cant find the schematic diagram for it at all.
Anyways, you can run subs off of it and they will sound nice.
Just turn the gain up, put the crossovers to LP and your good to go.

Clean power

Written By BIG E, Davenport IA on Saturday, October 25, 2008

I got this amp to run four 6.5 speakers it's got the power! The only thing is there is no bass boost so don't buy this for subs, also this amp is steel on the outside and a the heatsink is in the inside that the fan blows on. I have run this amp at full gain and it won't get hot! Also a note the crossover is set to 85hz highpass or lowpass.Or you can set it at full.